Drills sessions are designed to take your effort levels and cardio system to the max! Base your low RPM at 65, set some gear and try to get your pace over 100 for every Drill! Easy Right? No way! As your fatigue levels increase through the class, it should be the case that your high pace suffers but it’s your job to hit the same top revs each time and see the impact on your heart rate and the calorie burn, try the 65 100 session, enjoy!